info.guardianproject.mrapp.server.Util.java Source code

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Here is the source code for info.guardianproject.mrapp.server.Util.java

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/* Copyright (c) 2010 Google Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package info.guardianproject.mrapp.server;

import info.guardianproject.onionkit.trust.StrongHttpsClient;

import java.io.BufferedReader;
import java.io.Closeable;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.text.BreakIterator;
import java.util.List;

import org.json.JSONObject;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.util.Log;
import android.widget.Toast;
import ch.boye.httpclientandroidlib.HttpResponse;
import ch.boye.httpclientandroidlib.client.ClientProtocolException;
import ch.boye.httpclientandroidlib.client.HttpClient;
import ch.boye.httpclientandroidlib.client.methods.HttpPost;
import ch.boye.httpclientandroidlib.entity.StringEntity;
import ch.boye.httpclientandroidlib.message.BasicHeader;

public class Util {
    private static final String LOG_TAG = Util.class.getSimpleName();
    private Activity activity = null;

    public Util(Activity activity) {
        this.activity = activity;
    }

    public Activity getActivity() {
        return this.activity;
    }

    public void popup(String msg) {
        CharSequence text = msg;
        int duration = Toast.LENGTH_SHORT;
        Toast toast = Toast.makeText(activity, text, duration);
        toast.show();
    }

    public String getLocalClassName() {
        return activity.getLocalClassName();
    }

    public void gotoActivity(Class<? extends Activity> clazz) {
        Intent intent = new Intent(activity, clazz);
        activity.startActivity(intent);
    }

    public void d(String msg) {
        Log.d(activity.getLocalClassName(), msg);
    }

    public static String makeJsonRpcCall(String jsonRpcUrl, JSONObject payload, Context context) {
        return makeJsonRpcCall(jsonRpcUrl, payload, null, context);
    }

    public static String makeJsonRpcCall(String jsonRpcUrl, JSONObject payload, String authToken, Context context) {
        Log.d(LOG_TAG, jsonRpcUrl + " " + payload.toString());
        try {
            HttpClient client = new StrongHttpsClient(context);
            HttpPost httpPost = new HttpPost(jsonRpcUrl);

            if (authToken != null) {
                httpPost.addHeader(new BasicHeader("Authorization", "GoogleLogin auth=" + authToken));
            }

            httpPost.setEntity(new StringEntity(payload.toString(), "UTF-8"));

            HttpResponse httpResponse = client.execute(httpPost);
            if (200 == httpResponse.getStatusLine().getStatusCode()) {
                BufferedReader reader = new BufferedReader(
                        new InputStreamReader(httpResponse.getEntity().getContent(), "UTF-8"), 8 * 1024);

                StringBuilder sb = new StringBuilder();
                String line;
                while ((line = reader.readLine()) != null) {
                    sb.append(line).append("\n");
                }

                return sb.toString();
            }
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        } catch (ClientProtocolException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return null;
    }

    /*
    public String getGoogleAuth(String type) {
      AccountManager mgr = AccountManager.get(activity);
      Account[] accts = mgr.getAccountsByType("com.google");
        
      if (accts.length == 0) {
        return null;
      }
        
      try {
        Account acct = accts[0];
        Log.d(LOG_TAG, "acct name=" + acct.name);
        AccountManagerFuture<Bundle> accountManagerFuture = mgr.getAuthToken(acct, type, null,
      activity, null, null);
        
        Bundle authTokenBundle = accountManagerFuture.getResult();
        
        if (authTokenBundle.containsKey(AccountManager.KEY_INTENT)) {
    Intent authRequestIntent = (Intent) authTokenBundle.get(AccountManager.KEY_INTENT);
    activity.startActivity(authRequestIntent);
        }
        
        return authTokenBundle.get(AccountManager.KEY_AUTHTOKEN).toString();
      } catch (OperationCanceledException e) {
        e.printStackTrace();
      } catch (AuthenticatorException e) {
        e.printStackTrace();
      } catch (IOException e) {
        e.printStackTrace();
      }
      return null;
    }*/

    public boolean isCallable(Intent intent) {
        List<ResolveInfo> list = activity.getPackageManager().queryIntentActivities(intent,
                PackageManager.MATCH_DEFAULT_ONLY);
        return list.size() > 0;
    }

    public static CharSequence readFile(Activity activity, int id) {
        BufferedReader in = null;
        try {
            in = new BufferedReader(new InputStreamReader(activity.getResources().openRawResource(id)));
            String line;
            StringBuilder buffer = new StringBuilder();
            while ((line = in.readLine()) != null) {
                buffer.append(line).append('\n');
            }
            // Chomp the last newline
            buffer.deleteCharAt(buffer.length() - 1);
            return buffer;
        } catch (IOException e) {
            return "";
        } finally {
            closeStream(in);
        }
    }

    /**
     * Closes the specified stream.
     *
     * @param stream The stream to close.
     */
    private static void closeStream(Closeable stream) {
        if (stream != null) {
            try {
                stream.close();
            } catch (IOException e) {
                // Ignore
            }
        }
    }

    public static String truncate(String text, int charLimit) {
        if (text.length() > charLimit) {
            BreakIterator bi = BreakIterator.getWordInstance();
            bi.setText(text);
            int cutOff = bi.following(charLimit);
            text = text.substring(0, cutOff) + " ...";
        }
        return text;
    }

    public static String getYtdJsonRpcUrl(String ytdDomain) {
        return "http://" + ytdDomain + "/jsonrpc";
    }

    public static boolean isNullOrEmpty(String str) {
        if (str == null || str.trim().length() == 0) {
            return true;
        } else {
            return false;
        }
    }
}